package com.itheima.controller;

import com.itheima.utils.DateUtils;

import java.util.*;

public class demo {
    public static void main(String[] args) throws Exception {

        Map<String,Object> map = new HashMap<>();
        map.put("dd",11);
        map.put("zz",11);
        map.put("gg",11);
        map.put("hh",11);
        System.out.println(map);
        String o = (String) map.get("dd");

        int i = Integer.parseInt(o);
        System.out.println(i);
    }
}
